Reusable bomb diffuser

ABSTRACT

A reusable bomb diffusing device having a core structure with outer surfaces covered by outwardly extending and increasingly upwardly-directed energy-absorbing vanes that are fixed in position and separated from one another by approximately 3°, the core structure being centered within an outer chamber having solid side walls and a mesh top surface through which the rapidly expanding gases from a blast are exhausted. A central bottom opening in the present invention permits placement directly over a bomb, with movement of the device to a bomb&#39;s location being accomplished manually or via attachment to a motorized vehicle. Expanding gases within the core structure are directed to the vanes in vector geometry fashion, which reduces the gases&#39; energy and drives them upward to exit the outer chamber through the openings in its mesh top. During detonation, the present invention device remains substantially in its pre-explosion position. Police and military applications are contemplated.

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is a continuation-in-part of a patent application, Ser.No. 10/724,289, filed by the same inventors on Nov. 27, 2003 for thesame subject matter and entitled “Reusable Bomb Diffuser”. No new matterhas been added. The applicants and assignee herein request that allbenefit from the previously filed patent application referencedhereinabove be accorded to the instant application.

BACKGROUND OF THE INVENTION—FIELD OF THE INVENTION

This invention relates to the field of explosion-neutralizing devicesused to safely contain and/or redirect the energy released by explodingbombs and land mines, specifically to a reusable bomb diffusing devicehaving a core structure with all outer surfaces covered by a series ofoutwardly-extending and progressively upwardly-directed energy-absorbingvanes that are each fixed in position and separated from the nextadjacent vane by an angle of approximately 3°, the device also having anouter chamber with solid side walls and a mesh top surface through whichthe fine debris and rapidly expanding gases from a blast are exhausted.A central bottom opening in the present invention permits placementdirectly over a bomb. Thus, it is moved to the location of a bomb,eliminating the inherent dangers associated with transport of a bomb toa remote location for controlled detonation. Smaller present inventiondevices can be manually moved through the use of an upper handle, dolly,or other wheeled platform, while large present invention devices can beadapted for movement via temporary or permanent attachment to amotorized vehicle. After detonation, the air/gases immediatelysurrounding the exploded device expands within the core structure and itis directed to the vanes in vector geometry fashion, which reduce thegases' energy and drive them upwards to exit the outer chamber throughopenings in its mesh top. After detonation, the present invention deviceremains substantially in its pre-explosion position and in an undamagedcondition ready for subsequent use. Police and military applications arecontemplated.

BACKGROUND OF THE INVENTION—DESCRIPTION OF THE RELATED ART

The police and military personnel worldwide are repeatedly exposed to arisk of injury due to unexploded bombs and land mines, as are privatecitizens in certain countries recently affected by war. A variety ofmethods and devices have been used to either detonate the explosives ina controlled manner, or render then inert to allow for their safedisposal. Such methods and devices include but a re not limited tospraying explosives with cryogenic materials to render them temporarilyinert and allow for their safe disposal, remote activation systems thatpermit detonation at a safe distance, pre-detonation devices thatinitiate controlled burning of an explosive charge to avoid or lessenits detonation impact, microwave energy exploding devices that can beoperated at a safe distance, use of small animals such as rats to seekout and destroy mines or unearth and mark them for later removal, andneutralizing devices that comprise a housing placed over an explosivedevice with a casing and include at least one explosive charge thatpenetrates and opens the casing and forces reactive material onto theexplosive device to neutralize it without detonation. All of thesedevices and methods have some disadvantage, such as special handlingrequirements, great expense, time consuming animal training, and thelike. In contrast, the shape and construction of the present inventionutilizes physics to redirect explosive forces. Thus, the presentinvention is typically undamaged by an explosion and repeatedly usablewithout interim refurbishment or routine maintenance, the presentinvention can be used in areas having structures such as trees,buildings, fences, and motorized vehicles nearby without damages to suchstructures, and it can be moved to the site of a land mine or otherexplosive device via a motorized vehicle and remotely lowered intoplace. Further, it can be simple and relatively inexpensively made.There is no bomb-diffusing device known with the same features andcomponents as the present invention, nor all of itsexplosion-neutralizing advantages.

BRIEF SUMMARY OF THE INVENTION—OBJECTIVES AND ADVANTAGES

The primary object of this invention is to provide a reusable bombdiffuser that is able to eliminate the safety hazards posed bynon-detonated ordnance such as bombs and land mines, as well as otherexplosive devices, by detonating them in a controlled environment thatis configured to reduce the velocity of the expanding gases and debrisgenerated by the detonation while concurrently redirecting all laterallymoving gases and debris for release in a substantially upward direction.It is also an object of this invention to provide a reusable bombdiffuser that can be repeatedly used without interim refurbishment ormaintenance. A further object of this invention is to provide a reusablebomb diffuser that can be used while remaining attached to a motorizedvehicle. It is also an object of this invention to provide a reusablebomb diffuser that during detonation does not move substantially fromits pre-detonation position. A further object of this invention is toprovide a reusable bomb diffuser that is easy to construct and simple touse. It is also an object of this invention to provide a reusable bombdiffuser that is cost efficient to make and use when compared to thecosts associated with other ordnance elimination devices.

As described herein, properly manufactured and used, the presentinvention is a repeatedly reusable explosion-neutralizing device that isconstructed to completely cover the top and sides of a bomb at the timeof ignition, or be placed over the identified site of buried ordnance,such as a land mine. Its size is adapted during manufacture according tothe intended explosives or ordnance use. The cumulative design of thevanes outwardly directed from its core structure and separated from oneanother in increments of approximately 3°, cause the lower vanes to beplaced in a substantially horizontally-extending position and the uppervanes to be aimed in a substantially vertically-extending position. Suchpositioning allows for nearly all of the outwardly expanding debris andgases from detonation to be driven upwards and reduced in energy by thevanes, with the walls of the outer chamber redirecting the gases andfine debris that come into contact with it toward the mesh openings inthe outer chamber's top surface. Bernoulli's Law states that “when a gasis accelerated, its pressure and temperature drop”. Thus, the gaseswithin the core structure of the present invention are forced outwardbeyond the vanes and upward at a reduced velocity, as well as againstthe solid side walls of the outer chamber at a reduced velocity. Aftertotal expansion, the radiant gases exiting the core structure betweenthe vanes will cause an implosive reaction within the core structure asthe incoming gases equalize pressures therein back to the atmosphere.Further, since according to Newton's third law “For every action thereis an equal and opposite reaction”, and since the upwardly directedgases move through the top mesh at a reduced velocity, the outer chamberis held to the ground instead of being vertically lifted during adetonation. The vanes are at least one-eighth on an inch thick, toprevent their collapse during use. Although attachment of the vanescould theoretically be by any means able to withstand the maximumexplosive forces anticipated during use, the vanes in the most preferredembodiment of the present invention are welded in place against the corestructure. Thus, the present invention safely redirects the expandinggases released by a bomb, land mine, or other ordnance, and during anexplosion the outer chamber does not move substantially from itspre-detonation position. Since the vanes deflect expanding gases throughthe spaces between them, and the solid side walls of the outer chamberare impacted by gases having a reduced velocity, the core structure andouter chamber are not damaged during use and can be reused many timeswithout interim refurbishment or maintenance. The reduced velocity alsocauses a change in direction for laterally moving larger particulatedebris after it passes between the vanes, whereby it tends to accumulateon the bottom surface of the outer chamber between its solid side wallsand the base of the core structure therein, instead of moving upward andthrough the mesh openings in the outer chamber's top surface. Since thepresent invention does not move significantly during a detonation, itcould be used while attached to a motorized vehicle as long as a safetyshield is placed over any vehicle windows directly facing the outerchamber. Since the present invention has no motor, no moving parts, anda simple design, it is easy to construct. It is also safety enhancingand simple to use. Instead of the people wanting explosive devicedetonation having to move it to a containment device, the presentinvention is readily and promptly movable into position directly overthe explosive device via a handle, rod or pole, or motorized vehiclethat can remotely lower the present invention over the explosive device.Detonation of an explosive device positioned under the present inventioncan be activated remotely, whereafter all of the gases exiting the outerchamber do so through the mesh openings in its top surface. Although theouter chamber could have many configurations, a conical configurationwith a circular cross-section is preferred, as such a structure permitsa thinner wall dimension than would be required for an outer chamberhaving the cross-sectional configuration of a rectangle or other closedangular structure.

While the description herein provides preferred embodiments of thepresent bomb diffuser invention, it should not be used to limit itsscope. For example, variations of the present invention, while not shownand described herein, can also be considered within the scope of thepresent invention, such as but not limited to variations in the number,placement, and size of the reinforcement stiffeners used against thesolid side walls of the outer chamber; the type of material used to makethe core structure and the outer chamber; the configuration of theopenings in the mesh top of the outer chamber; the height, width, andlength dimensions of the core structure and the outer chamber; theconfiguration of the portion of the core structure supporting the vanes;the type of attachment means used with the outer chamber for itsmovement from one location to another between detonation uses; and thenumber and thickness of the vanes attached to the core structure. Thus,the scope of the present invention should be determined by the appendedclaims and their legal equivalents, rather than being limited to theexamples given.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a perspective view of the most preferred embodiment of thepresent invention bomb diffuser having a core structure centered withinan outer chamber having solid side walls, non-movable reinforcementstiffeners attached to the outside surface of the walls, and a mesh top.

FIG. 2 is a sectional view of the most preferred embodiment of thepresent invention bomb diffuser having in the alternative a corestructure ‘B’ that is nearly the full height of the outer chamber, or acore structure ‘A’ that is significantly less than the full height ofthe outer chamber.

FIG. 3 is a schematic view of the most preferred embodiment of thepresent invention bomb diffuser showing the 3° placement of the adjacentenergy diffusing vanes fixed to the outside surface of the corestructure.

FIG. 4 is a perspective view of one of the vanes the in the mostpreferred embodiment of the present invention bomb diffuser.

FIG. 5 is a front view of several vanes in the most preferred embodimentof the present invention bomb diffuser attached to a verticallyextending rib.

FIG. 6 is a sectional view of a second preferred embodiment of thepresent invention bomb diffuser having a pyramid-shaped core structure.

FIG. 7 is a perspective view of the second preferred embodiment with itscore structure positioned so that its handle extends above the mesh topsurface of the outer chamber.

FIG. 8 is a side view of the first preferred embodiment being attachedto the front end of a motorized vehicle that is moving toward anexplosive device buried in the ground.

FIG. 9 is a side view of the first preferred embodiment remainingattached to the front end of a motorized vehicle as it is lowered overthe explosive device.

FIG. 10 is a side view of the first preferred embodiment remainingattached to the front end of a motorized vehicle while the explosivedevice within the outer chamber is detonated.

DETAILED DESCRIPTION OF THE INVENTION

The present invention is a repeatedly usable explosion neutralizer thatis constructed to completely cover at the time of ignition the top, ortop and sides, of a bomb, other explosive device, or ordnance (such asbut not limited to the land mine 46 shown in FIGS. 8-10). Its size isadapted during manufacture according to the intended explosives orordnance application. Thus, a present invention device intended for usein detonating satchel bombs would typically be larger than the presentinvention devices used only for detonation of pipe bombs. Allembodiments of the present invention have a core structure 20 securedwithin an outer chamber 4 and fixed vanes 16 securely attached to thesides, or top and sides, of core structure 20. The cumulative design ofthe vanes 16 outwardly directed from core structure 20 are separatedfrom one another in 3° increments and cause the lower vanes 16 to beplaced in a substantially horizontally-extending position and the uppervanes to be aimed in a substantially vertically-extending position. Suchpositioning allows for nearly all of the outwardly expanding debris andgases (shown by force lines 18 in FIGS. 1 and 6) that result fromdetonation of an explosive device within or completely under corestructure 20 to be reduced in energy and driven upwards by the vanes 16,with the solid side walls of the outer chamber 4 redirecting the gasesand fine debris hitting it toward the mesh openings in the outerchamber's top surface 6. Once the upwardly directed fine debris andgases leave outer chamber 4 through the mesh openings in top surface 6,an upward moving Karmen vortex ring is formed that further reduces theenergy of the expanding gases. In contrast, the reduced velocity of thegases causes any coarse debris to fall to the bottom surface 22 of outerchamber 4. During the detonation of an explosive device within or undercore structure 20, outer chamber 4 does not move significantly from itspre-detonation position, even if the explosive device to be detonated(such as but not limited to the land mine 46 shown in FIGS. 8 and 10) isnot completely centered within or under core structure 20. Since thevanes 16 deflect expanding debris an gases through the spaces betweenthem, and the walls of the outer chamber 4 are impacted by gases havinga reduced velocity, the core structure 20 and outer chamber 4 are notdamaged during use and can be reused many times. Since the presentinvention has no motor, no moving parts, and a simple design, it is easyto construct. It is also safety enhancing and simple to use. Instead ofpeople who desire detonation or neutralization of an explosive devicehaving to move the device to a protective container, the presentinvention is readily and promptly movable into a position directly overthe explosive device via a handle 28 (such as but not limited to thatshown in FIGS. 6 and 7), a rod or pole 8 (such as but not limited tothat shown in FIG. 1), or a motorized vehicle 40 (such as but notlimited to that shown in FIGS. 8-10). Detonation of an explosive devicepositioned under the present invention can be activated remotely,whereafter all of the fine debris particulate and gases exiting theouter chamber 4 do so through the mesh openings in its top surface 6.

FIGS. 1 and 2 show the most preferred embodiment 2 of the presentinvention bomb diffuser having a core structure 20 centered within anouter chamber 4 having solid side walls, a flange 10 outwardly extendingfrom the bottom surface 22 of outer chamber 4, a mesh top surface 6, anda plurality of reinforcement stiffeners 12 attached to flange 10 and theoutside surface of the solid side walls of outer chamber 4. Although thenumber, shape, and size of reinforcement stiffeners 12 can vary as longas they are able to successfully perform their reinforcement function,the most preferred size, positioning, and construction of reinforcementstiffeners 12 are shown in FIG. 1. Further, although the materials usedfor outer chamber 4, core structure 20, bottom flange 10, andreinforcement stiffeners can be the same, such as armor plate or coldrolled steel, the materials used during manufacture for such presentinvention components can also be different to meet cost and intendedapplication requirements. FIGS. 1 and 2 also show outer chamber 4 havinga bottom surface 22 between core structure 20 and the solid side wallsof outer chamber 4, and a bottom opening 14 centered within corestructure 20 and through which an explosive device, such as but notlimited to land mine 46, is introduced into or placed in communicationwith the interior of core structure 20. In FIGS. 1 and 2, a fewrepresentative vanes 16 are shown attached to core structure 20,however, during manufacture vanes 16 would be made to extend across allouter surfaces of core structure 20, similar to the configuration ofvanes 16 shown in FIG. 7. FIG. 2 shows that the height of core structure20 can vary during manufacture as needed for particular applications,with core structure 20B having nearly the full height of outer chamber 4and useful for detonation of satchel bombs or equivalent explosivecharges, and core structure 20A being approximately two-thirds of thefull height of outer chamber 4 and being appropriate for detonation ofpipe bombs or equivalent explosive charges. However, FIG. 2 is only usedto provide a side-by-side comparison of two alternative core structures20A and 20B so as to show their respective height with respect to outerchamber 4, and it should be understood that in any given embodiment ofthe present invention, the sides of each core structure 20 used wouldhave all the same height dimension for even distribution of outwardlyexpanding gases and debris within outer chamber 4 and stable positioningof outer chamber 4 during detonation of an explosive device within itsattached core structure 20. Further, although outer chamber 4 could havemany configurations, such as but not limited to the conical outerchamber 4 shown in FIG. 2 or the rectangular outer chamber shown inFIGS. 6 and 7, the conical configuration with a circular cross-sectionthat is show in FIGS. 1 and 2 is preferred, as such a structure permitsa thinner wall dimension than would be required for an outer chamber 4having a rectangular or other angled closed configuration. According toBernoulli's Law, which states that “when a gas is accelerated, itspressure and temperature drop”, the gases within core structure 20 areforced outward beyond vanes 16 and upward at a reduced velocity, as wellas against the solid side walls of outer chamber 4 at a reducedvelocity. In addition, after total expansion, the radiant gases exitingcore structure 20 between vanes 16 will cause an implosive reactionwithin core structure 20 as the outgoing gases equalize pressurestherein back to atmospheric pressure. Further, since according toNewton's third Law “For every action there is an equal but oppositereaction”, and since the upwardly directed gases move through the meshopenings in top surface 6 at a reduced velocity, outer chamber 4 is heldto the ground instead of being vertically lifted during a detonation.The mesh openings in top surface 6 are not limited to the rectangularconfiguration shown in FIG. 1, and can be hexagonal (as shown in FIGS.7), substantially diamond-shaped as in catwalk material (not shown), orany configuration that can rapidly exhaust the expanding gases caused byan explosion originating within core structure 20. FIGS. 8-10 show thefirst embodiment 2 of the present invention being secured to the frontend of a motorized vehicle 40 and remaining attached to motor vehicle 40during detonation.

FIG. 3 shows the approximate three-degree placement of adjacentenergy-diffusing vanes 16 from one another on the outside surface ofcore structure 20 in the most preferred embodiment 2 of the presentinvention, while FIGS. 4 and 5 respectively show the preferredrectangular cross-sectional configuration for vanes 16 and theattachment of vanes 16 to a vertically-extending rib 24 via multiplewelds 26. The vanes 16 are at least one-eighth of an inch thick, butpreferably have a one-fourth inch thickness dimension to prevent theircollapse during use. The preferred rectangular cross-section of vanes 16gives them their durability. Vanes 16 having a tapering configurationwould be at high risk for erosion and detachments from core structure 20or 36 during a detonation, and should not be used. Although attachmentof the vanes 16 could theoretically be by any means able to withstandthe maximum explosive forces anticipated during detonation use, thevanes 16 in the most preferred embodiment 2 of the present invention areheld in place against the core structure 20 by multiple welds 26.

FIGS. 6 and 7 show a second preferred embodiment of the presentinvention bomb diffuser invention having a pyramid-shaped member 36 witha core structure 20. Theoretically, core structure 20 could have thecross-sectional configuration of any closed polygon that would result inmore than the four sides shown in FIGS. 1 and 7, however, doing so wouldincrease the manufacturing cost of the present invention by the amountof labor required to attach the additional vanes 16 required and theamount of labor and materials needed to strengthen the less structurallysound multi-sided core structures that are inherently weaker due to thepresence of additional joints. Although the outer chambers 4 in FIGS. 6and 7 are shown to be rectangular, they can also be conical, as shown inFIGS. 1 and 2, or have other reinforces cross-sectional configurations(not shown). FIG. 6 shows the lines of force 18 from an explosion movingbetween vanes 16 and all lines of force 18 being upwardly directed aftermovement through vanes 16. Some of the expanding gases and debrisrepresented by the lines of force 18 are deflected from the inside wallsurface of outer chamber 4 toward the mesh openings in to0p surface 6.At least one vertically-extending rib 24 (such as but not limited tothat shown in FIG. 5) would be used on each side of pyramid-shapedsubstitute core member 36 to hold vanes 16 securely in place during anexplosion. FIG. 6 shows a web structure 34 connecting adjacent vanes 16and a fastening/reinforcement means 38 used to secure the upper portionof core member 36 to the portion of top surface 6 directly adjacentthereto. FIG. 7 also shows the mesh openings in top surface 5 having ahexagonal configuration. The size and configuration of the openings intop surface 6 are limited only by the need for them to rapidly exhaustexpanding gases and debris caused by a detonation within core structure20. FIGS. 6 and 7 both show a handling member 28 with a venturi opening30 that can be used to insert a means of igniting the explosive devicecovered by core structure 20. For safety considerations, it iscontemplated for the ignition means used (not shown) to be remotelyactivated. Handling member 28 extends above the mesh openings in topsurface 6, and further has multiple outward projections each having atleast one bore 32 therethrough that is sized for the insertion of a rodor pole, such as but not limited to the rod 8 shown in FIG. 1, formanual transport of the combined outer chamber 4 and core structure 20from one location to another as needed for explosives and/or ordnancedetonation. In addition, although not shown, outer chamber 4 could bemanually transported by a wheeled dolly, other wheeled platform, or handtruck, or in the alternative could be temporarily or permanentlyattached to a motorized vehicle, such as but not limited to the motorvehicle 40 shown in FIGS. 8-10, for transport from the location of onenon-detonated explosive device to another, such as but not limited tothe land mine 46 also shown in FIGS. 8-10. If the present invention isused for detonation while still attached to a vehicle, and once thepresent invention is lowered into position over an explosive device, forsafety purposes it is recommended that a shield be placed over anyvehicle window facing outer chamber 4. Although explosions typicallycreated fine debris particulate, FIG. 6 shows that at least some of themore coarse explosion debris 48 could be expected to accumulate uponbottom surface 22 between vanes 16 and the inside surface of the solidside walls of outer chamber 4.

FIGS. 8-10 show the most preferred embodiment 2 being attached to thefront end of a motorized vehicle 40 with a movable safety shield 44 thatcan be raised for protection of the windshield of motorized vehicle 40during detonation. Although not shown, most preferred embodiment 2 couldbe attached to any other side or part of motor vehicle 40 convenient tothe application. Further, motor vehicle 40 is not restricted to thetruck shown in FIGS. 8-10 and can be any sturdy vehicle capable oftransporting in a lifted position the combined weight of outer core 4and core structure 20 or 36, such as but not limited to a variety ofmilitary vehicles, including tanks. FIGS. 8-10 further show a remotelyoperated system 42 adapted for raising and lowering most preferredembodiment 2 that is connected between motorized vehicle 40 and outerchamber 4. Any sturdy system capable of repeatedly raising and loweringthe weight of outer chamber 4 and core structure 20 or 36 can beemployed. FIG. 8 shows a motorized vehicle 40 moving toward anon-detonated explosive device 46. Safety shield 44 is in a loweredposition and outer chamber 4 is connected to the distal end of avertical movement system 42 and is in a raised position that does notinterfere with efficient movement of motor vehicle 40. FIG. 9 showsouter chamber 4 still connected to the distal end of vertical movementsystem 42, but now in a lowered position centered over non-detonatedexplosive device 46. A centered position of explosive device 46 withincore structure 20 or 36 is preferred, but not critical. Verticalmovement system 42 is still connected to motorized vehicle 40, andsafety shield 44 is now in a raised position that provides a barrierbetween the windshield of motorized vehicle 40 and the expanding gasesand debris represented by force lines 18 in FIG. 10. FIG. 10 shows outerchamber 4 still connected to the distal end of vertical movement system42 while explosive device is being detonated, with safety shield 44 alsoremaining in its raised protective position between outer chamber 4 andthe windshield of motorized vehicle 40. Force lines 18 represent thesubstantially upward movement of expanding gases and fine debrisresulting from the detonation of explosive device 46. Outer chamber 4does no move significantly from its pre-detonation position, whichallows it to remain attached to the distal end of vertical movementsystem 42 during detonation. As mentioned before, in the alternative,movement of outer chamber 4 can be made by manual means rather than bymotorized means, such as but not limited to the use of a rod or poleinserted through outer chamber 4, as shown in FIG. 1 and which wouldrequire at least two people to manipulate, or alternatively through theuse of poles or rods 8 inserted through openings 32 in the handle 28shown in FIGS. 6 and 7, which would also require lifting by at least twopeople. Further, although not shown, a non-motorized dolly, otherwheeled platform, or hand truck could be used by one person to placeouter chamber 4 in its usable position.

The explosion-neutralizing capability of the most preferred embodiment 2shown in FIGS. 1, 2, and 8-10 has been successfully tested, as recordedon film, by the Manatee County Sheriff's Department in Bradenton,Florida, by detonating the equivalent of three sticks of dynamite withincore structure 20 that were each approximately two inches in diameterand twelve inches in length. The test was made in a field having a tree,fence, equipment, and farm animals nearby, with the tree, fence,equipment, and animals sustaining no injury or damage as a result of thedetonation.

1. A reusable bomb diffuser for use in neutralizing the potentiallyharmful affects of exploding gases and debris resulting from thedetonation of a land mine or other exploding device housed under ortherein, so that the velocity of expanding gases is slowed and laterallymoving gases and debris are set on an upward course for release fromsaid diffuser in a substantially upward direction, said bomb diffusercomprising: an outer chamber with solid side walls and a top surfaceconfigured with openings adapted for the upward venting of expandinggases and debris; a core structure centered within said outer chamberand firmly secured to said outer chamber, with said core structurehaving a bottom surface and an opening through said bottom surface; anda plurality of spaced-apart vanes each attached to said core structurein an orientation relative to said core structure that is outwardlyextending and progressively upwardly directed whereby the lowest ones ofsaid vanes are substantially horizontally-extending and the highest onesof said vanes are substantially vertically-extending, and furtherwhereby said vanes are configured and positioned to reduce the velocityof expanding gases and debris from an explosion within said corestructure.
 2. The diffuser of claim 1 wherein said vanes each have aminimum thickness dimension of approximately one-eighth of an inch. 3.The diffuser of claim 2 wherein said vanes each have a rectangularcross-section.
 4. The diffuser of claim 1 wherein each of said vanes isseparated from the next adjacent one of said vanes by a uniformincrement.
 5. The diffuser of claim 4 wherein said uniform increment isapproximately three degrees.
 6. The diffuser of claim 1 wherein said topsurface has a configuration adapted to facilitate the formation of anupwardly-moving Karmen vortex ring in the upwardly-moving explodinggases and debris exiting from said outer chamber, whereby the energy ofthe expanding gases is further reduced so that fine debris and gasesbecome upwardly directed and leave said outer chamber through said topsurface, while coarse debris resulting from an explosion within saidcore structure falls to said bottom surface.
 7. The diffuser of claim 1wherein said solid side walls of said outer chamber have a configurationand uniform height dimension adapted to provide an even distribution ofoutwardly expanding gases and debris within said outer chamber.
 8. Thediffuser of claim 1 wherein said core structure has a venturi, andfurther comprising a transport means adapted for facilitated movement ofsaid outer chamber from one needed location to another, and wherein saidtransport means is selected from a group consisting of motorizedvehicles, movement means adapted for remotely raising and lowering saidouter chamber, rods, poles, handles, and handles having an openingconfigured and positioned to communicate with said venturi.
 9. Areusable bomb diffuser for use in neutralizing the potentially harmfulaffects of exploding gases and debris resulting from the detonation of aland mine or other exploding device housed under or therein, so that thevelocity of expanding gases is slowed and laterally moving gases anddebris are set on an upward course for release from said diffuser in asubstantially upward direction, said bomb diffuser comprising: an outerchamber with solid side walls and a top surface configured with openingsadapted for the upwardly venting expanding gases and debris, with saidsolid side walls also having an outside surface, in addition to aconfiguration and uniform height dimension adapted to provide an evendistribution of outwardly expanding gases and debris within said outerchamber; a core structure centered within said outer chamber and firmlysecured to said outer chamber, with said core structure having a bottomsurface and an opening through said bottom surface; a plurality ofspaced-apart vanes each attached to said core structure in anorientation relative to said core structure that is outwardly extendingand progressively upwardly directed whereby the lowest ones of saidvanes are substantially horizontally-extending and the highest ones ofsaid vanes are substantially vertically-extending, and further wherebysaid vanes are configured and positioned to reduce the velocity ofexpanding gases and debris from an explosion within said core structure;a plurality of reinforcement stiffeners attached to said outside surfaceof said solid side walls; and wherein said top surface of said outerchamber has a configuration adapted to facilitate the formation of anupwardly-moving Karmen vortex ring in the upwardly-moving expandinggases and debris exiting from said outer chamber, and whereby due to theenergy of the expanding gases being further reduced by the formation ofthe Karmen vortex ring the fine debris and gases become upwardlydirected and leave said outer chamber through said top surface, whilecoarse debris tends to fall to said bottom surface.
 10. The diffuser ofclaim 9 wherein said vanes each have a rectangular cross-section and aminimum thickness dimension of approximately one-eighth of an inch. 11.The diffuser of claim 9 wherein each of said vanes is separated from thenext adjacent one of said vanes by a uniform increment.
 12. The diffuserof claim 11 wherein said uniform increment is approximately threedegrees.
 13. A method for neutralizing the potentially harmful effectsof exploding gases and debris resulting from the detonation of a landmine or other exploding device, so that the velocity of the expandinggases is slowed and the laterally moving gases and debris are redirectedand forced to travel in a substantially upward direction, said methodcomprising the steps of: providing an outer chamber with solid sidewalls and a top surface configured with openings adapted for the upwardventing of expanding gases and debris, a core structure with an openbottom, and a plurality of vanes; attaching said vanes to said corestructure so that said vanes are outwardly extending from said corestructure with progressively upward orientation whereby the lowest onesof said vanes are substantially horizontally-extending and the highestones of said vanes are substantially vertically-extending; centeringsaid core structure within said outer chamber; and securely attachingsaid core structure to said outer chamber whereby the velocity ofexpanding gases from the detonation of an explosive device positionedwithin said core structure is reduces by said vanes and laterallytraveling gases and debris are directed upwardly for release from saidouter chamber via said openings in said top surface.
 14. The method ofclaim 13 wherein said vanes each have a rectangular cross-section and aminimum thickness dimension of approximately one-eighth of an inch. 15.The method of claim 13 wherein each of said vanes is separated from thenext adjacent one of said vanes by a uniform increment.
 16. The methodof claim 15 wherein said uniform increment is approximately threedegrees.
 17. The method of claim 13 wherein said top surface has aconfiguration adapted to facilitate the formation of an upwardly-movingKarmen vortex ring in the upwardly-moving exploding gases and debrisexiting from said outer chamber.
 18. The method of claim 13 wherein saidsolid side walls of said outer chamber have a configuration and uniformheight dimension adapted to provide an even distribution of outwardlyexpanding gases and debris within said outer chamber.
 19. The method ofclaim 13 further comprising a transport means adapted for facilitatedmovement of said outer chamber from one needed location to another. 20.The method of claim 19 wherein said core structure has a venturi, andwherein said transport means is selected from a group consisting ofmotorized vehicles, movement means adapted for remotely raising andlowering said outer chamber, rods, poles, handles, and handles having anopening configured and positioned to communicate with said venturi.